Ah shoot you pipped me to the post (no pun intended) sox!
For various reaasons I can't discuss I've got some insights to this accident.
However if you wwre to look at the court documents you would find that:
On November 13, 2009, PHI filed a cross-complaint against AAI alleging that the helicopter crash and resulting loss of the helicopter was directly, solely, and proximately caused by manufacturing defects and/or unreasonably dangerous designs of the helicopter’s windshields, which were manufactured by AAI.
In its cross-claim, PHI seeks damages for the value of the helicopter, the loss of its use, search and rescue operations, and other relevant
expenses.
I would have expected that the familes would also have gone after Shell Oil as they all worked for Shell contractors and Shell selected the S-76C++'s with those windscreens when they contracted PHI to operate them.
As our 'PPRuNe Mate' Shell Management has pointed out elsewhere, oil companies have 'deep pockets' and Shell must faile their own 'red face test' in this case.